ACHR Dark Pool Activity
Archer Aviation Inc.
Data as of Oct 23, 2026 · Source: FINRA daily short sale volume (off-exchange)
On Oct 23, 2026, FINRA reported 11.1M ACHR shares in publicly disseminated off-exchange trades (dark pools and other off-exchange venues). 5.2M of those shares (46.6%) were marked short or short-exempt, below ACHR's 30-day rolling average of 53.7% (z-score -1.03). Over the last 10 FINRA sessions (Oct 12, 2026 – Oct 23, 2026), ACHR's off-exchange short volume ratio ranged from 43.0% to 59.2% and averaged 49.6%; the latest reading is below that 10-session average.
Off-Exchange Volume
11.1M
Short Volume
5.2M
Short Volume Ratio
46.6%
30-Day Average
53.7%
z-score -1.03
Daily readings — last 10 FINRA sessions
| Date | Off-exchange shares | Short shares | Short ratio |
|---|---|---|---|
| Oct 12, 2026 | 15.1M | 8.9M | 59.2% |
| Oct 13, 2026 | 13.8M | 7.8M | 56.5% |
| Oct 14, 2026 | 15.5M | 8.0M | 51.3% |
| Oct 15, 2026 | 13.4M | 5.8M | 43.0% |
| Oct 16, 2026 | 10.2M | 5.6M | 55.1% |
| Oct 19, 2026 | 7.8M | 3.6M | 46.4% |
| Oct 20, 2026 | 9.0M | 4.0M | 44.7% |
| Oct 21, 2026 | 11.9M | 5.8M | 48.8% |
| Oct 22, 2026 | 9.6M | 4.2M | 43.9% |
| Oct 23, 2026 Latest | 11.1M | 5.2M | 46.6% |
Source: FINRA daily short sale volume (off-exchange). Ratio = ShortVolume ÷ TotalVolume for the day.
ACHR dark pool FAQ
- How much ACHR off-exchange volume did FINRA report on Oct 23, 2026?
- FINRA's daily short sale volume file reported 11.1M ACHR shares in publicly disseminated off-exchange trades on Oct 23, 2026; 5.2M of those shares (46.6%) were marked short or short-exempt.
- Is ACHR's dark pool short volume ratio unusual right now?
- As of Oct 23, 2026, ACHR's short volume ratio of 46.6% is below ACHR's 30-day rolling average of 53.7% (z-score -1.03). Meridian's dark pool model does not flag this reading as an anomaly.
- What does the dark pool short volume ratio measure?
- FINRA publishes daily short sale volume for trades reported off-exchange to its trade reporting facilities, which include dark pools and other off-exchange venues. The ratio divides FINRA's ShortVolume figure, which counts both short and short-exempt sales, by the total off-exchange shares reported for that day. It is not short interest and not a directional signal: market-maker hedging and reporting mechanics can raise it, so it is context for other signals.